Abstract: A novel process for preparing a gas absorbent, comprising the steps of adding sodium bromate to a mixture of sulfuric acid aqueous solution and active carbon, reacting them, separating solids from the reaction mixture, and drying said solids. The gas absorbent can be utilized as a reagent for preserving the freshness (inhibiting agent) of fruits, an inhibitor of flower withering, an inhibitor of bulb germinating and root sprouting, an inhibitor of plant withering, leaf falling or fruit falling, a reagent for controlling the growth and specialization of plants, a deodorant or an absorbent of organic compounds having double bonding or triple bonding.

Abstract: The invention relates to an envelope having a transparent layer, allowing printed information on the letter paper in the envelope to appear through the envelope. The inner surface of the transparent layer is laminated with a transparent, thermal adhering synthetic resin film to bind the transparent layer to a second layer along their periphery.

Abstract: A zinc-metallized base material for metallized capacitors and a process for its production in which a vacuum-deposited zinc layer being formed on at least one side of a base material composed of film or thin capacitor paper, and a surface protective layer composed of a substance which shows a predetermined vapor pressure at a predetermined temperature being provided thereon in a predetermined thickness to thereby improve the humidity resistance of the vacuum-deposited zinc layer.

Abstract: A cardboard container with anti-slip property is disclosed. It has a synthetic resin layer formed of thermoplastic synthetic resin fine hollow particles of 5 to 50 microns in diameter containing one or more of an inert gas, an active gas, a nonvolatile liquid and a volatile liquid coupled by a synthetic resin component exhibiting an action of a binder. The synthetic resin layer is formed on the outer surface of at least one of bottom and upper walls of the container on the entire surface or a portion of the surface as a spot, a lattice or a stripe. Thus, particular means are not necessary to handle the cardboard container such as packing with a film or binding with bands after stacking a plurality of containers. The anti-slipping effect remains even after the stacked containers are sorted and transferred.

Abstract: A printing paper for thermal transfer printing comprising a substrate, and a dye acceptor layer formed on one surface of the substrate to accept a sublimable dye transferred from a dye carrier ribbon in contact with the dye acceptor layer upon selective heating of the dye carrier ribbon. The dye acceptor layer has a cumulative pore volume of 0.2 to 0.6 cm.sup.3 /g and contains a pigment in the form of particles whose median particle diameter of from 0.2 to 2 .mu.m. In particular, the dye acceptor layer is made of a coating of a resinous binder uniformly dispersing a pigment therein, the coating being impregnated with a resin having good affinity for the sublimable dye.

Abstract: An apparatus is provided for supplying for a subsequent process step a desired number of flat sheets at one time from a pile of flat sheets such as pulp sheets or the like. The pile is put on a platform which is elevated step by step by a given amount corresponding to a desired number of sheets. A gap is first formed in the pile by inserting one wedge member which is provided so as to be reciprocatingly movable in the transverse direction with respect to the pile. By also inserting in the gap fork tines provided so as to be likewise reciprocatingly movable in the transverse direction with respect to the pile, the flat sheets on and over the fork tines are assuredly separated from the others. At the same time these upper sheets are sent to a feed mechanism by virtue of the engagement of stopping members which are movable integrally with the fork tines in association with the forward movement of the fork tines and the edge portions of the flat sheets.

Abstract: Disclosed is a method of producing a packaging paper for packaging metallic materials, as well as a packaging material such as corrugated box produced from the packaging paper, the method comprising at least one of the steps of (i) pulping a material by a cooking liquor containing no sulfur compound, or pulping the material by a cooking liquor containing a sulfur compound and then oxidizing the pulp with a peroxide, (ii) conducting the paper making step in the neutral region of pH value ranging between 6 and 8, and (iii) applying a rust-prevention agent and/or a sterilizer to the paper sheet. Disclosed also are a packaging paper and packaging material for packaging metallic materials, produced by the above-mentioned method.

Abstract: A discharge recording material produced by successively forming a colored layer comprising mainly carbonblack and a binder, a deposited metal layer and optionally a protective layer on a support is provided. In particular, the discharge recording material wherein said carbonblack being carbonblack aggregates obtained by pretreating carbonblack particles with a plasticizer is provided.

Abstract: A discharge recording medium having a colored insulating layer, a metal-vaporized layer and, as required, a protection layer formed in that order on a support member, wherein the colored insulating layer contains a graphite powder having particles of a specifically determined average size in an amount according to a specifically determined ratio with respect to a bonding resin in the colored insulating layer.

Abstract: Disclosed is a heat-sensitive recording paper comprising a colorless or pale-colored chromogenic substance and a phenolic substance for coloring the chromogenic substance by heating, in which amorphous synthetic aluminum silicate and/or amorphous synthetic magnesium silicate is incorporated in a recording layer.

Abstract: A novel type of low temperature heat-sealable bi-axially oriented polypropylene composite film and a process for the production thereof are disclosed. The composite film is characterized by having on at least one of the outer surfaces thereof a uni-axially or bi-axially oriented extremely thin continuous layer of a primary higher fatty acid amide or an N-substituted higher fatty acid amide formed through the sequential coating and orientating, and it shows well-balanced excellence in all properties required for such films including lubricity, anti-blocking property, anti-scratch property and low temperature heat sealability.

Abstract: An improved process for the production of pulp from lignocellulosic material characterized by the employment of a cooking aid is disclosed. The cooking of the lignocellulosic material is carried out in the presence of a small amount of a compound selected from the group consisting of hydroxyanthracenes and derivatives thereof.

Abstract: A novel process for producing pulp is disclosed, by which cooking of lignocellulosic materials can be carried out advantageously in the presence of a novel cooking aid added to the cooking liquor. Representative examples of such cooking aids include maleic acid, sodium maleate, potassium maleate, maleic anhydride, fumaric acid, sodium fumarate, potassium fumarate, mesaconic acid and sodium mesaconate. Both cooking yield and quality of pulp are substantially improved. The cooking aids can be used in combination with dihydroxydihydroanthracene.

Abstract: A novel adsorptive nonwoven fabric having good strength as well as good permeability and softness and a method of making the same is disclosed. This product consists essentially of supporting fibers containing a heat-fusible fiber and an adsorptive material, said supporting fibers being disintegrated in air before they are admixed with an adsorptive material, and a web is formed from the final mixture followed by being subjected to a heat treatment at a temperature above the melting point of said heat-fusible fiber to firmly fix said adsorptive material in the web by heat-fusion of the heat-fusible fiber.

Abstract: There is disclosed a novel composite film prepared by melt extrusion laminating a polymer blend composition comprising a low-crystalline resin of an ethylene-butene copolymer and a polyolefin resin having incorporated therein a lubricant and an anti-blocking agent onto a surface or surfaces of a uniaxially stretched polypropylene film followed by stretching the laminate film in the direction perpendicular to the direction in which said polypropylene has been stretched and optionally subjecting the resulting film to corona discharge treatment. The composite film thus made provides an excellent packaging material because of its improved antistatic, lubricating and anti-blocking properties in addition to its heat sealability feasible at lower temperatures than prior art materials.

Abstract: An apparatus for accurately measuring the freeness of paper stock in a short time is disclosed.The apparatus comprises a pump and plunger which take a sample of stock from a flowline or a place in which paper stock is prepared and places the sample in an agitation tank. A water supply dilutes the sample in the agitation tank to a predetermined consistency and a first pressurized air supply agitates the diluted sample so that fibrous material in the stock is evenly dispersed in the water. The agitation tank is closed to the atmosphere and a second pressurized air supply provides a pressure in the tank for draining the liquid from the sample through a screen. The liquid which passes through the screen is delivered to a measuring cylinder.

Abstract: A method is disclosed which makes a bag-in-carton by successively and intermittently advancing cartons, the upper ends of which are opened, and during the advancement successively supplying each of the cartons with a flattened bag, and subsequently blowing up the bag. A bag supplying apparatus and a bag blowing up apparatus used for performing the method are also disclosed. The bag supplying apparatus comprises means for supplying tubular material, roller means for intermittently advancing the material, means for providing the material with side folds while the material is being advanced, means for heat sealing the side folded material thereacross at the places spaced by the distance equal to the desired length of the bag to form bottom seams, and means for cutting the material just below the bottom seams to provide bags.

Abstract: An improved process for the production of pulp from lignocellulosic material characterized by the employment of a cooking aid is disclosed. The cooking of the lignocellulosic material is carried out in the presence of a small amount of a compound selected from the group consisting of hydroxyanthracenes and derivatives thereof.